Alarm-clock.



E. W. WBINMANN.

ALARM CLOCK.

APPLICATION FILED 313.12, 191s.

1,126,599, Patented Jan-26, 1915.

C Ic Mylar/IA THE MORRIS PETERS Ca. PHOTO-LITHD.. WASHING IUN. D C

ERNEST W. WEINMANN, F CHICAGO, ILLINOIS.

ALARM-CLOCK. i

Specification of Letters Patent.

Patented Jan. 26, 1915.

Application :filed February |12, 1913. Serial No. 747,883.

To all whom t may concern Be it known that I, ERNEsT W. WEIN- MANN, a citizen of the United States, and a resident of the city of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Alarm-Clocks, of which the following is a specification.

My invention relates to improvements in alarm clocks and more especially to means for automatically resetting the alarm when stopped, so that said alarm will be in operative condition at the time of its next occasion for use, the object of the invention being to provide a device of this character which is of simple construction and efficient in operation.

My invention consists in the combinations and arrangements of parts hereinafter described and claimed.

The invention will be best understood by reference to the accompanying drawings forming a part of this specification, and in which,

Figure 1 is a face view of mechanism embodying my invention, and Fig. 2, a section of the same.

The preferred form of construction as illustrated in the drawing comprises a star wheel member 1 which is fixed to a shaft 2, the latter carrying the minute hand (not shown) of the clock mechanism and is adapted to be rotated once each hour in the usual manner (not shown). The star wheel member 1 coperates with a companion star wheel member 3 to rotate member 3 once every twenty-four hours, as will be readily understood. Star wheel member 3 is loosely mounted on a shaft t and itself carries a hollow shaft or sleeve 5 upon which is ictionally mounted a cam wheel 6, a friction washer 7 being arranged as shown to hold said cam frictionally in position on sleeve 5 but permit of its adjustment thereon fron" y application of some force. A frictionally held. longitudinally slidable rod 8 is arranged to ride upon the periphery of cam wheel 6 so as to be operated thereby. Rod 8 carries an arm 9 arranged to engage the ordinary clapper 10 of the alarm escapement 12 to prevent operation of said clapper upon depression of rod 8, as will be readily understood by those skilled in the art. The face of cam wheel 6 is provided with va suitable dial and an indicator linger 11 coperates with said dial to indicate setting thereof on sleeve 5, the parts being so arranged that cam wheel 6 will be in the position indicated in Fig. 1 to permit of depression of rod 8 and consequent stopping of the alarm when the regular alarm mechanism is in position to go off.

A tubular stem 2l is rotatively mounted on shaft 2 and operatively connected there with by a train of gears 1 to be rotated once in twelve hours. Said stem 2 is adapted to carry the hour hand (not shown) of the clock mechanism. Fixed on the tubular stem 2 is an alarm controlling disk 15 having a notch 1/1 cooperating with an arm 13 carried by the alarm escapement 12 to control the operation of the latter. Members 2, 2, 4', 10, 12, 18, 14 and 15 are of c011- ventional construction and produce their usual functions in the clock mechanism.

In use, when the alarm is ringing and it is desired to stop the same, rod 8 is dcpressed until arm 9 engages clapper 10 and rocks escapement 12 carrying arm 13 out of notch 14 of the alarm controlling cam 15 thus interrupting the alarm. Then as cam wheel 6 slowly turns under the influence of .its star wheel connection, the cam surface on the periphery of said cam wheel gradually elevates rod 8 so as to release clapper 10 thus automatically freeing the clapper for another operation when disk 15 is again in position to permit arm 13 to enter notch la. It will be observed that this arrangement permits of the stopping of the alarm when desired and insures that the alarm will be free for its next operation without any further attention from the user.

lVhile I have illustrated and described the preferred form of construction for carrying my invention into eect, this is capable of variation and modification without departing from the spirit of the invention. I, therefore, do not wish to be limited to the precise details of construction set forth, but desire to avail myself of such variations and modifications as come within the scope of the appended claim.

Having described my invention what I claim as new and desire to secure by Letters Patent is:

The combination of a clock having alarm mechanism including a setting disk and striking clapper, of a notched disk rotatively mounted and geared at a ratio of two to ong,fvvfaly-l thgrlsk oa they; l@12u-11m111901121- lnf@ testimony Whereof-,I 11m/'8;si'gned my nsmg=fafsliding-pin mountedin-sad-clocknameto'ths Specification in the presence of and adapted to engage said notch-and-'zrm two subscribing Witnesses.

arm 0n Said pin adaptefa@zzlockaig- ;Qlap- ERNEST W. WEINMANN. per against operation When said pin is in VVtnesses:

engagement with said notch, substantially JOSHUA R. H. POTTS,

as described. HELEN F. LILLIS.

Cbis of Itilisjxaf'enlzgmaiyligobtainecl fp r jvegnt ea,h, by addressing the Commissioner of Patents,

f Washingtongnc. 

